Slowly working my way through learning the basics of javascript an it's good fun!

Anywho Iv'e been having this problem for a while now.

Every so often (quite often) the taskbar freezes. It's so freaking irritating. If I click on it lots the box comes up with do I want to wait for the program to respond or close the program. If I click close it closes it all an starts again and is fine, untill it freezes again. It is extremely annoying!

Just wondered if anyone had any ideas?

Windows vista home premium is what im running. I'd put xp on here if I could. Im on a laptop by the way.